Add Yahoo as a preferred source to see more of our stories on Google. More women are turning to egg freezing. in hopes of conceiving children down the line. Here's why — and what the process involves.

Human bodies have to be built from a single egg cell that's fertilized by a sperm cell. Many rounds of cell division occur as the body is developing, and it seems that there are plenty of chances for ...

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

Alabama lawmakers, reacting to public outcry over the state Supreme Court's decision that embryos created by in vitro fertilization are legally the same as children, passed a law on March 7 designed ...